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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2011-10-12 11:57:56 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-12 11:48:51 +0100
commit5f07c32e289d159be3fc1e4f257e8cad5336f83a (patch)
treeb6348851c124b5a5e9c6f51a8de062dc9fa7931a /drivers/input
parent70601ec10a2450369d554e49d708ab26deb17b66 (diff)
downloadop-kernel-dev-5f07c32e289d159be3fc1e4f257e8cad5336f83a.zip
op-kernel-dev-5f07c32e289d159be3fc1e4f257e8cad5336f83a.tar.gz
Input: twl6040-vibra: Check the selected path for vibra
The VIBSELL/R bit in the VIBCTLL/R register tells the source of the data, which is going to be used to drive the attached motor(s). Do not allow effect execution if any of the channels are set to receive audio data. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/misc/twl6040-vibra.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index cb74185..2a828e5 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -201,6 +201,13 @@ static int vibra_play(struct input_dev *input, void *data,
struct vibra_info *info = input_get_drvdata(input);
int ret;
+ /* Do not allow effect, while the routing is set to use audio */
+ ret = twl6040_get_vibralr_status(info->twl6040);
+ if (ret & TWL6040_VIBSEL) {
+ dev_info(&input->dev, "Vibra is configured for audio\n");
+ return -EBUSY;
+ }
+
info->weak_speed = effect->u.rumble.weak_magnitude;
info->strong_speed = effect->u.rumble.strong_magnitude;
info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
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